Somewhere in the back of my head I seem to remember someone posting a reference sheet that contained all of the Marlin bore dimensions from beginning to present. The tables included numbers of lands and grooves, groove depth, twist rate, etc.
I can't remember if it was on this forum or not. If any of you guys could help me out I would appreciate it.
If I ever come across it again I will print it out and put it in a folder.
Steve in N CA